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Bosch CL6001iU W 26 E Notice D'installation page 54

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  • FRANÇAIS, page 66
Troubleshooting
Fault code
Possible Cause
EH 0b
Communication error between main PCB of indoor unit and display
EH 02
Fault when detecting the zero-crossing signal
EH 03
Fan speed of indoor unit outside the normal range
EH 60
Temperature sensor error at T1 (room temperature)
EH 61
Temperature sensor error at T2 (centre of evaporator coil)
1)
EL 0C
Insufficient or escaping refrigerant or temperature sensor error at T2
EL 01
Communication error between IDU and ODU
PC 00
Fault at IPM module or IGBT overcurrent protection
PC 01
Over- or undervoltage protection
PC 02
Temperature protection at compressor or overheating protection at IPM module or pressure relief device
PC 03
Low pressure protection
PC 04
Inverter compressor module error
PC 08
Protection against current overload
PC 40
Communication fault between main PCB of outdoor unit and main PCB of compressor drive
−−
Conflicting operating mode of indoor units; operating mode of indoor units and outdoor unit must correspond.
1) Leak detection not active, if in a system with multi-split air conditioner.
Table 71
Special condition
Possible cause
--
Conflicting operating mode of indoor units; operating mode of indoor units and outdoor unit must correspond.
1) Conflicting operating mode of indoor unit. This can occur in a multi split system, when different units operate in different modes. To solve the problem, adjust operating mode
accordingly.
Note: units set to cooling / dry / fan mode will be affected with a mode
conflict as soon as one other unit in the system is set to heating (heating
is the priority system mode).
5.2
Faults not indicated
Fault
The output of the indoor unit is too low.
Outdoor unit or indoor unit is not working.
Outdoor unit or indoor unit starts and stops
continuously.
1) A fuse for the overcurrent protection is located on the main PCB. The specification is printed on the main PCB and can also be found in the technical data on page 56.
Table 72
54
Possible cause
Heat exchanger of the outdoor or indoor unit
contaminated or partially blocked.
Shortage of refrigerant
No current
Leakage protector or fuse installed in the
1)
device
has blown.
Insufficient refrigerant in the system.
Too much refrigerant in the system.
Moisture or impurities in the refrigerant circuit.
Voltage fluctuations too high.
Defective compressor.
Remedy
▶ Clean heat exchanger of outdoor or indoor
unit.
▶ Check tightness of pipes, reseal if required.
▶ Refill refrigerant.
▶ Check power connection.
▶ Power on the IDU.
▶ Check power connection.
▶ Check the leckage protection and fuse.
▶ Check tightness of pipes, reseal if required.
▶ Refill refrigerant.
Remove refrigerant with refrigerant recovery
unit.
▶ Evacuate refrigerant circuit.
▶ Fill with new refrigerant.
▶ Install voltage regulator.
▶ Replace compressor.
Climate 6000i – 6721838270 (2024/01)
1)

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